Hiroshi Kameya

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By introducing the continuous dynamic programming (CDP) algorithm developed by Oka [Oka, R., 1998. Spotting method for classification of real world data. The Comput. J. 41 (8), 559–565], we have developed a new segmentation-free, text-independent biometric writer verification method improving the average correct acceptance rate and the average correct(More)
The paper proposes a method of writer verification based on a spotting method called CDP (Continuous Dynamic Programming). The method has more advantageous aspects over conventional methods; 1) no keyword registration in advance except that a user writes a sentence-like sequential pattern of stroke, 2) accep tance of any segment of the above pattern as an(More)
This paper propose a method of writer verification based on on-line features extracted from a process of drawing a figure, and evaluate its performance on handdrawn figures by genuine writers and pretenders. In the proposed method, a person in registration writes only the reference figure, which is composed of as many parts as possible and the person can be(More)
A novel synthesis of substituted pyrroles by a gold(I)-catalyzed cascade reaction has been developed. The reaction proceeded with an autotandem catalysis consisting of an initial addition of gold-acetylide to an acetal moiety and was followed by gold-catalyzed 5-endo-dig cyclization and aromatization. Gold catalysts play a dual role in activating(More)
Writer Verification by Using an Arbitrary Part of Feature Sequence Extracted from On-Line Handwritten Character/Figure Patterns Hiroshi Kameya Chair of Supervisory Committee: Professor Ryuichi Oka Graduate Department of Information Systems By introducing the continuous dynamic programming (CDP) algorithm developed by Oka (1998), I have developed a new(More)
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